Guide claw and a method of arranging a pump on a base

Patent metadata

Field	Value
Publication number	US-11767946-B2
Application number	US-202117369636-A
Country	US
Kind code	B2
Filing date	Jul 7, 2021
Priority date	Jul 8, 2020
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

Some particular preferred embodiments relate to the field of pumping stations for sewage and wastewater with submersible pumps mounted in the bottom of the wells. To allow easy cleaning and maintenance of the pumps without getting in contact with the dirty water the solution is a system for easy lifting of the pump out of the well and lowering the pump again with an auto coupling.

First claim

What is claimed is:

1. A pump support comprising:
a base part having a lower end and an upper end, said base part comprising an end face; and
a guide claw adapted for carrying a pump and being configured for releasably arranging the pump on the base part at the end face, the guide claw comprising a first guide member, wherein the base part comprises:
a lower support part at the lower end, the lower support part being configured to non-resiliantly support the pump in a longitudinal direction towards the base part and in a vertical direction towards the lower end; and
an upper support part having a support surface at the upper end configured to receive said first guide member and supporting said first guide member in an abutting engagement with a resilient element positioned in between the upper support part and the first guide member, so that with gravity acting on the pump, the guide claw is resiliently supported at the support surface of the upper support part.

2. A pump support according to claim 1 , wherein said guide claw comprises a second guide member arranged at a lower position of the guide claw and being configured to be received by said lower support part.

3. A pump support according to claim 1 , further comprising a tubular mount element configured to be arranged at an outlet of the pump, said tubular mount element comprising a second guide member arranged at a lower position of the guide claw and being configured to be received by said lower support part.

4. A pump support according to claim 3 , wherein a second guide member is arranged at a lower position of an outlet section of said pump and is configured to be received by said lower support part.

5. A pump support according to claim 1 , wherein at least a part of the guide claw extends from said pump.

6. A pump support according to claim 5 , wherein the guide claw is mounted on or made integral with an upper side of an outlet pipe of said pump.

7. A pump support according to claim 1 , wherein:
the guide claw comprises two of said first guide members arranged with a distance in between them, and a single of said first guide members; and
the base part comprises two of said upper support parts arranged with a horizontal distance in between them.

8. A pump support according to claim 1 , wherein the support surface is vertical or forms an angle relative to vertical by an amount of less than 15 degrees and larger than 0 degrees.

9. A pump support according to claim 1 , wherein a pump is arranged on the guide claw, the pump comprising a pump house configured for housing an impeller and being arranged on said guide claw.

10. A pump support according to claim 1 , wherein:
the lower support part includes a second vertical support surface and a second horizontal support surface; and
the second guide member of the guide claw comprises:
a second vertical abutment surface configured to abut the second vertical support surface, so as to support the pump in longitudinal direction towards the base part; and
a second horizontal abutment surface configured to abut the second horizontal support surface, so as to support the pump in vertical direction towards the lower end.

11. A pump support according to claim 1 , wherein:
the support surface is inclined upwardly towards the end face; and
the first guide member includes a vertically inclined abutment surface inclined so as to be parallel with or substantially parallel with the inclination of the support surface;
the resilient element is arranged in-between the support surface and the vertically inclined abutment surface.

12. A pump support according to claim 1 , wherein the upper support part comprises a first horizontal support surface configured for supporting the resilient element by abutment in a horizontal plane.

13. A pump support according to claim 1 , wherein:
the upper support part comprises a vertical extending lateral guide surface for supporting the resilient element by abutment in lateral direction; and
lateral is a horizontal direction perpendicular to a longitudinal direction of the pump support.

14. A pump support according to claim 1 , wherein:
the first guide member forms a cavity open ended in downward direction configured for receiving the upper support part; and
the base part at its upper end is inclined upwardly away from said end face.

15. A pump support according to claim 1 , wherein the guide claw is made integral with or releasable connected to the pump housing.

16. A pump support according to claim 1 , wherein the resilient element is attached to one of the guide claw or the base part.

17. A pump support according to claim 1 , wherein:
the resilient element is made partly or fully from an elastomer, hyperelastic material with metal plates forming one or both outer abutment surfaces; and
said metal plates are bonded by vulcanization.

18. A pump support according to claim 1 , wherein the guide claw comprising one or more guide openings configured for cooperating with one or more vertically arranged guide bars so that the guide claw may slide guided along said guide bar(s):
in a vertically downwardly motion so that the lower support part receives said second guide member, and the upper support part receives said first guide member; and
in a vertically upward motion so that the second guide member departs from the lower support part and the first guide member departs from the upper support part.

19. A pump support according to claim 1 , wherein:
said base part comprises a fluid channel having an inlet arranged in fluid communication via a through-going opening provided in the guide claw or a tubular mount element configured to be arranged at an outlet of the pump and at another end forming an outlet;
said guide claw or said tubular mount element being arranged with a through-going opening forming a fluid passage between the pump, when arranged on the base part, and the fluid channel of said base part.

20. A pump support according to claim 19 , wherein the though-going opening of the guide claw is configured for providing a fluid seal against said end face of the base part.

21. A pump support according to claim 1 , wherein:
a second guide member is arranged at a lower position of an outlet section of said pump and is configured to be received by said lower support part; and
said outlet section is configured for providing a fluid seal against said face of the base part.

22. A pump support according to claim 21 , wherein the fluid seal is provided by a seal ring.

23. A method of providing a pump support comprising: a base part having a lower end and an upper end, said base part comprising an end face; a guide claw adapted for carrying a pump and being configured for releasably arranging the pump on the base part at the end face, the guide claw comprising a first guide member, wherein the base part comprises: a lower support part at the lower end, the lower support part being configured to non-resiliantly support the pump in a longitudinal direction towards the base part and in a vertical direction towards the lower end; and an upper support part having a support surface at the upper end configured to receive said first guide member and supporting said first guide member in an abutting engagement with a resilient element positioned in between the upper support part and the first guide member, so that with gravity acting on the pump, the guide claw is resiliently supported at the support surface of the upper

Assignees

• Grundfos Holding As

Inventors

• Hovmand Per

Classifications

• F16M1/00 Primary

  Frames or casings of engines, machines or apparatus; Frames serving as machinery beds · CPC title

• F04D3/00

  Axial-flow pumps (priming or boosting F04D9/00) · CPC title

• F04D13/086

  the pump and drive motor are both submerged · CPC title

• F04D29/607 Primary

  means for positioning from outside · CPC title

• F04D29/628 Primary

  especially adapted for liquid pumps · CPC title